[Elecraft] K3 and KX3 questions for Wayne

Kevin Stover kevin.stover at mediacombb.net
Sun May 22 17:09:07 EDT 2016


You do know what's going on this weekend right?
I'm sure once he is back from Dayton he will give your questions all of 
they attention they deserve.
What sort of watt meter are we measuring the output with?

On 5/22/2016 1:46 PM, N6MQL wrote:
> Although I appreciate all of your answers I specifically asked these 
> questions of Wayne because I was making a point to let him know of my 
> disapproval of the fact that the KXPA100 amp is incapable of running a 
> full 100 watts on a standard 12v battery. Furthermore I was trying to 
> get an explanation from the head designer as to why my amp that has a 
> 30amp power supply at 15v (read on the KX3) or 15.4v at the input is 
> unable to transmit at a full 100 watts on all bands.  Yes, I have the 
> supplied cable with fuses attached, it's only 3 feet long, and the 
> transmit vs' receive voltage is less than a volt difference.  So all 
> of those bases have been covered. As noted I have also completed the 
> KX3 power configuration, and the KX3 to KPA matching alignment 
> procedure...
> I was alluded to the idea that there were a second revision of boards 
> that came out for the KXPA100 after the early models were shipped.  I 
> have also heard that those boards help increase the output power. 
> Therefore I was asking WAYNE if this were the case, and perhaps having 
> them would help this situation. As for the 12v not running the amp, 
> this IS an issue because at field day we have 150 Ah batteries that 
> run 12 volts, and it would be nice to have my 100 watt amp run a full 
> 100 watts. Again, this was designed as a portable amp. I would expect 
> that at 12v we should be able to get the full rating out of it.
>
> On another note, what may have also gotten lost due to all those 
> trying to be helpful, but cluttering my original post.  I have a K3 
> that no longer puts out 100 watts on 17 meters but does on all other 
> bands.  I was told this was a software issue by Tech Support.  I would 
> like confirmation FROM WAYNE that this is the case, and when he may 
> have time to address it. If not, I would like to know why I was told 
> this.
>
> So again, as much as I appreciate all of you trying to help with these 
> questions, I would much prefer that Wayne address them personally.  
> Thank you,
>


-- 
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441



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